Structured Manufacturing Data (2026)

Oil-Water Separator

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Oil-Water Separator used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Oil-Water Separator is characterized by the integration of Coalescing Filter Element and Collection Bowl. In industrial production environments, manufacturers listed on CNFX commonly emphasize Stainless Steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A device that removes oil and water contaminants from compressed air streams

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Product Specifications

Technical details and manufacturing context for Oil-Water Separator

Definition
An essential component within compressed air systems that separates oil aerosols, water vapor, and liquid contaminants from the compressed air flow to protect downstream equipment and ensure air quality standards
Working Principle
Utilizes coalescing filtration where compressed air passes through specialized filter media that causes oil and water droplets to coalesce into larger droplets, which then drain by gravity to a collection bowl for removal
Common Materials
Stainless Steel, Polypropylene, PTFE Membrane
Technical Parameters
  • Connection port size for system integration (mm) Per Request
Components / BOM
  • Coalescing Filter Element Part
    Primary filtration media that causes oil and water droplets to coalesce
    Material: Glass fiber or synthetic media
  • Collection Bowl Part
    Collects separated liquids for drainage
    Material: Polycarbonate or metal
  • Drain Valve
    Automatically or manually discharges collected liquids
    Material: Brass or stainless steel
  • Housing Part
    Pressure vessel containing the filter element
    Material: Aluminum or stainless steel

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Oil-Water Separator.

Coalescing Filter Oil Removal Filter industrial oil water separator for compressed air stainless steel coalescing filter separator PTFE membrane oil removal system automatic drain valve oil water separator polypropylene collection bowl separator

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Compressed Air System
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 16 bar (232 psi)
flow rate: 0.5 to 1000 m³/h
temperature: -20°C to 80°C
oil concentration: Up to 1000 ppm inlet, <0.01 ppm outlet
Media Compatibility
✓ Compressed air systems ✓ Industrial process gas streams ✓ Lubricated compressor discharge
Unsuitable: High particulate slurry with abrasive solids (>50 microns)
Sizing Data Required
  • Maximum air flow rate (m³/h or SCFM)
  • Operating pressure (bar or psi)
  • Required oil removal efficiency (ppm)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Emulsion formation
Cause: Inadequate chemical treatment, improper pH control, or excessive turbulence preventing oil-water separation due to stable droplet dispersion.
Corrosion and fouling
Cause: Aggressive water chemistry (e.g., high chloride, H2S), microbiologically influenced corrosion (MIC), or scaling from hardness/minerals reducing efficiency and structural integrity.
Maintenance Indicators
  • Visible oil sheen or emulsion in the effluent water discharge
  • Abnormal pressure drop across separator plates or coalescing media indicating clogging
Engineering Tips
  • Implement real-time monitoring of influent/effluent quality (e.g., pH, oil concentration, turbidity) with automated chemical dosing to maintain optimal separation conditions.
  • Establish a routine cleaning and inspection schedule for internal components (plates, coalescers, weirs) using non-destructive testing (NDT) to detect early corrosion or fouling.

Compliance & Manufacturing Standards

Reference Standards
ISO 14001:2015 - Environmental management systems ANSI/ASME B31.3 - Process piping DIN EN 858 - Separator systems for light liquids
Manufacturing Precision
  • Flange flatness: ≤0.1mm per 300mm diameter
  • Weld seam alignment: ±1.5mm from centerline
Quality Inspection
  • Hydrostatic pressure test at 1.5x design pressure
  • Oil separation efficiency test per API 421

Factories Producing Oil-Water Separator

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

How does an oil-water separator work in compressed air systems?

It uses coalescing filter elements to merge tiny oil aerosols into larger droplets, which then separate from air by gravity and collect in a bowl for drainage via an automatic valve.

What maintenance is required for oil-water separators?

Regularly replace coalescing filter elements, inspect and clean the collection bowl, and ensure the automatic drain valve functions properly to prevent oil buildup.

Why choose stainless steel construction for oil-water separators?

Stainless steel offers corrosion resistance, durability in harsh industrial environments, and compliance with hygiene standards, ensuring long-term reliability and minimal contamination risk.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Machinery and Equipment Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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